Stakeholder Cube: Three-Dimensional Model for Stakeholder Analysis

PMBOK v8 Definition

The stakeholder cube is a refinement of grid models that combines grid elements into a three-dimensional model useful for project managers and teams in identifying and engaging their stakeholder community. It provides a model with multiple dimensions that improves the depiction of the stakeholder community as a multidimensional entity and assists with the development of communication strategies. This model is classified under Stakeholder Mapping/Representation methods used in stakeholder analysis.

Why It Matters for the Exam

The stakeholder cube appears frequently in PMI exam questions testing your ability to distinguish between stakeholder classification models. Questions typically present a scenario requiring selection of the appropriate stakeholder analysis tool, and the stakeholder cube is the correct answer when the scenario describes a need for multidimensional analysis beyond simple two-dimensional grids. Expect 1-2 questions on this concept in the Stakeholder Management domain.

Key Points to Remember (for the exam)

• Purpose: Refines grid models (power/interest, power/influence, influence/impact) by adding a third dimension for more comprehensive stakeholder analysis
• Key Distinction: Unlike 2D grids that classify stakeholders on two axes, the stakeholder cube adds a third dimension for multidimensional depiction
• Primary Benefit: Improves depiction of stakeholder community as a multidimensional entity
• Practical Application: Assists with development of communication strategies by revealing stakeholder relationships across multiple dimensions
• Common Confusion: Not a replacement for salience model—both are distinct classification methods used for different analytical purposes
• Typical Dimensions: Power, interest, influence, impact, urgency, legitimacy (any combination of three)
• Best For: Complex projects with diverse stakeholder communities where 2D grids are insufficient

Typical PMI Exam Example

A project manager is leading a large infrastructure project with stakeholders from government agencies, local communities, environmental groups, and private investors. The team needs to understand stakeholder relationships across power, influence, and urgency simultaneously. Which stakeholder mapping method should they use? Answer: Stakeholder cube, because it combines three dimensions for multidimensional stakeholder analysis.

PMI Exam Traps

• Trap: Confusing stakeholder cube with salience model

• Reality: Stakeholder cube uses three dimensions from grid models; salience model specifically uses power, urgency, and legitimacy

• Trap: Thinking stakeholder cube replaces all 2D grids

• Reality: Stakeholder cube is a refinement of grid models, not a replacement—2D grids remain useful for simpler projects

• Trap: Assuming stakeholder cube is the only 3D model available

• Reality: The salience model also uses three dimensions (power, urgency, legitimacy) but is a distinct method

• Trap: Believing stakeholder cube dimensions are fixed

• Reality: Dimensions can vary based on project needs; any three grid dimensions can be combined

Important PMI Connections

Quick Review Questions

1. What makes the stakeholder cube different from the power/interest grid in stakeholder classification?

2. A project team needs to analyze stakeholders based on power, influence, and urgency. Which stakeholder mapping method is most appropriate?

3. How does the stakeholder cube assist with communication strategy development?

4. What is the relationship between the stakeholder cube and the salience model?

5. When would a project manager choose the stakeholder cube over a simple 2D grid model?

PMBOK v8 Reference

Section 5.2.2.2 - Stakeholder Mapping/Representation (Stakeholder Cube subsection)